Nokia Asha 300 MMC Memory Card Problem Solution Ways Jumpers.
If you are facing mmc problem in nokia asha 300 then here is a helpful and useful diagram for you to solve these problems.loock at diagram bellow and in it you can see an ic is identified with red box. This part is used for memory card functions in nokia asha 300.
Check all the board carefully and if there is some rust carbon or water damage then clean it with electronics cleaner and dry it with hot air or put it under electrical bulb for a few mint so that can be dry. not apply to much heat because and can be harm for your mobile circuit.
Then resold this ic with hot air and if not solve the problem then change this.
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